I know last year Robinson Cano wasn’t productive with runners in scoring position last year, as evidenced by a .207 BA, but I don’t think he’s un-clutch. I think Joe Girardi summed it up best:
“There was a streak when he had made about 10 or 11 outs in a row with runners in scoring position, and he hit nine bullets,” Girardi said. “Over the long term that usually irons itself out, but when you don’t have 600,000 at-bats, it doesn’t iron out. His at-bats, a lot of times were very good with runners in scoring position. I didn’t think he had a lot of luck last year” – via Chad Jennings
He might be exaggerating a little there, but still, it was just one season. Look at his numbers before last year with runners in scoring position.
2006: .306 BA/.335 OBP/.500 SLG
They’re not great, but I’d definitely consider last year an outlier.